Power Sector Overview and Career Pathways
What the domain tests
The Power Sector Overview and Career Pathways domain checks that you can place a job in the electricity value chain and name the organisation responsible for each stage. In India, generation is done by central utilities such as NTPC and NHPC, state generating companies and private IPPs. PGCIL and state transmission utilities run the transmission network, while distribution companies (discoms) supply consumers. CEA frames technical standards, CERC and SERC regulate tariffs, and NLDC/RLDC/SLDC coordinate grid operations.
Core rules
- Generation produces bulk power, usually at 11–25 kV, and a generator transformer steps it up for transmission.
- Transmission uses 66–765 kV; distribution generally operates at 33 kV and below, ending at 230/400 V for most consumers.
- A discom buys power; it does not normally own large generating stations.
- NSQF-aligned roles include wireman, lineman, substation attendant, technician and supervisor. Career progress usually runs helper → technician/lineman → senior technician → junior engineer, with experience and further study.
- Statutory safety and competency requirements apply before work on live or high-voltage systems.
Worked example
An advert reads: “Assistant Lineman, city distribution circle; assist in LT line maintenance, meter installation and fault restoration.” Reasoning: LT maintenance and meter work are distribution O&M activities, so the employer is a discom or its contractor. The entry route is ITI/NSQF electrical training plus safety induction and pole-climbing practice. It is not a generation-plant operator post, because no turbine, boiler or generator operation is mentioned.
Traps
Do not label PGCIL a distribution company-it is a transmission utility. Do not say CERC fixes every state’s retail tariff; the SERC does. Do not describe a lineman as a substation designer; the role is installation, maintenance and restoration under supervision.